Super lightweight bike using 3D printed stainless steel lugs

VRZ1. is a tack bike frame designed and built by Rhino user Ralf Holleis for his diploma thesis. This tack bike frame is combined by 3D printed stainless steel lugs and carbon fiber tubes which are being glued together. The fork weighs 480 g and the frame is 1100 g, so superlight! If you print the lugs in titanium the total weight will be even less.

The lugs are generated by a program that allows you to change the geometry before being printed. So actually you can make the frame in any custom size and then glue onto the carbon fiber tubes.

(photo credit: vorwaertz.com)

Check out the video of the VRZ1. Don't be surprised if tomorrow your neighbour comes home with a VRZ1.